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Updated: Oct 22, 2026

Measuring G-protein-coupled Receptor Signaling via Radio-labeled GTP Binding
10:13

Measuring G-protein-coupled Receptor Signaling via Radio-labeled GTP Binding

Published on: June 9, 2017

TGF-beta-receptor-mediated signaling

R Derynck1

  • 1Department of Growth and Development, University of California at San Francisco 94143-0640.

Trends in Biochemical Sciences
|December 1, 1994
PubMed

Insights

Transforming growth factor beta (TGF-beta) controls cell growth and differentiation. Research explores how TGF-beta signaling, via its receptors, halts epithelial cell cycles in late G1 phase.

Area of Science:

  • Cell Biology
  • Molecular Biology
  • Biochemistry

Background:

  • Transforming growth factor beta (TGF-beta) and related proteins are crucial regulators of cell proliferation and differentiation.
  • TGF-beta's capacity to induce growth arrest in epithelial cells is a significant area of research.
  • The identification of TGF-beta receptors as a novel class of cell-surface receptors offers insights into signal transduction pathways.

Purpose of the Study:

  • To investigate the molecular mechanisms by which TGF-beta signaling induces cell cycle arrest.
  • To understand how TGF-beta interacts with the cell-cycle machinery, specifically in the late G1 phase.
  • To elucidate the role of TGF-beta receptors in mediating these cellular responses.

Main Methods:

  • Analysis of TGF-beta signaling pathways.
  • Characterization of cell-cycle regulatory proteins.
  • Studies involving TGF-beta receptor cloning and function.
  • Investigation of epithelial cell responses to TGF-beta.

Main Results:

  • TGF-beta signaling is confirmed to play a key role in controlling cell proliferation and differentiation.
  • TGF-beta effectively induces growth arrest in epithelial cells.
  • The cloning of TGF-beta receptors has shed light on the initial steps of TGF-beta signal transduction.
  • Advances in cell-cycle machinery understanding facilitate research into TGF-beta's G1 arrest mechanism.

Conclusions:

  • TGF-beta signaling is a critical regulator of cell growth and differentiation, particularly in epithelial cells.
  • TGF-beta receptors are key mediators of TGF-beta's effects on cell cycle progression.
  • Further research into the interplay between TGF-beta signaling and cell-cycle machinery is essential for understanding growth control.

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